Re: [FFmpeg-user] 4.3.1 configure error

2020-10-30 Thread Carl Zwanzig
On 10/30/2020 10:10 AM, MediaStream wrote: Attempting to build *static* FFmpeg 4.3.1 on AWS EC2 Amazon-Linux 2 instance. x265 v.3.4 *ERROR: x265 not found using pkg-config* *Please advise on a proper course of action* Install x265? (is it already installed using another method?) z!

Re: [FFmpeg-user] sudo: ffmpeg: command not found

2020-10-29 Thread Carl Zwanzig
On 10/29/2020 12:02 PM, Reindl Harald wrote: * everybody is born to read "ERROR" at the end of configure Un, no they're not, nor to understand what it means and *whether* it's relevant. * everybody is born to realize that "Try again from the top, git clone a fresh working copy" is idiotic -

Re: [FFmpeg-user] Could not write header for output file #0 (incorrect codec parameters ?)

2020-10-29 Thread Carl Zwanzig
On 10/29/2020 1:50 AM, USMAN AAMER wrote: How can I resolve the issue? Start by posting the entire command output that fails. (and remember not to top-post on this list) z! ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] sudo: ffmpeg: command not found

2020-10-28 Thread Carl Zwanzig
On 10/28/2020 3:37 PM, Reindl Harald wrote: which shell don't respect PATH? Not relevant. either make your binary available in PATH or type the fucking full qualified path to it Such polite language (and really, NOBODY has such expansive knowledge and experience as you do, and it's

Re: [FFmpeg-user] sudo: ffmpeg: command not found

2020-10-28 Thread Carl Zwanzig
On 10/28/2020 2:02 PM, Reindl Harald wrote: learn about https://en.wikipedia.org/wiki/PATH_(variable) or type your f**g path full qualified - basics not related to ffmpeg Or first ask if the OP is using a c-shell derivative where "rehash" is the correct command to make new ones accessible

Re: [FFmpeg-user] (no subject)

2020-10-26 Thread Carl Zwanzig
On 10/26/2020 4:22 PM, juan carlos rebate wrote: It is not my intention to do top posting, this is because I do not like to use mail apps, I like the graphical interface web, and this does not have options to avoid it Yes it does, I do that all the time, both in the android app and in a

Re: [FFmpeg-user] Trying to Reduce Sizes of Movies Ripped with MakeMKV

2020-10-25 Thread Carl Zwanzig
On 10/25/2020 10:40 PM, Marc Barrett wrote: I am ripping the DVDs (and Blu-Rays) in exactly the same way: with MakeMKV, to MKV containers. As the name suggests, MakeMKV rips to MKV containers. MakeMKV is a GUI utility, so there is no output that I can post. But there _is_ output from ffmpeg,

Re: [FFmpeg-user] (no subject)

2020-10-25 Thread Carl Zwanzig
On 10/25/2020 10:14 PM, Juan carlos Rebate wrote: However if you compile two separate versions there would be no licensing issue if you share it, would it? If you "share" the build, then technically you're distributing it. The one that's GPL only is perfectly fine to share (following the

Re: [FFmpeg-user] (no subject)

2020-10-25 Thread Carl Zwanzig
On 10/25/2020 9:16 PM, Juan carlos Rebate wrote: my question is derived from the license problem that does not allow gpl codecs together with non-free codecs I may be mistaken, but as I understand the GPL, if you're not distributing anything (building for your own use), there are no license

Re: [FFmpeg-user] Trying to Reduce Sizes of Movies Ripped with MakeMKV

2020-10-25 Thread Carl Zwanzig
On 10/25/2020 3:24 PM, Ted Park wrote: I wonder if the BD/DVD ripping software you are using can be made to transcode so you wouldn’t have to do this. And I also wonder if the rip is _upscaling_ the dvd to 1080 instead of leaving it at SD resolution since about the longest dvd movie will be

Re: [FFmpeg-user] Converting text to video for dictation

2020-10-20 Thread Carl Zwanzig
On 10/20/2020 6:52 AM, Edward Park wrote: You say it’s not very efficient using your video editor (I assume something along the lines of Avid, PPro, FCPX/Motion), but I don’t think FFmpeg is the right tool for the job, unless you had some really complex ass subtitles already, using a bunch of

Re: [FFmpeg-user] ffmpeg does nothing but using CPU

2020-10-20 Thread Carl Zwanzig
On 10/20/2020 10:33 AM, Cecil Westerhof wrote: What could be happening here? Please post some more info, at the least the complete command and the output of the last invocation in by the script. Later, z! ___ ffmpeg-user mailing list

Re: [FFmpeg-user] problem capture desktop

2020-10-18 Thread Carl Zwanzig
On 10/18/2020 11:25 AM, Juan carlos Rebate wrote: I have already solved the problem, for those who want to solve... (a) do not top post on this mailing list El dom., 18 oct. 2020 a las 20:12, Carl Zwanzig () escribió: offlist (b) DO NOT REPOST offlist messages! That's incredibly rude

Re: [FFmpeg-user] MPEG TS+PS parser

2020-10-17 Thread Carl Zwanzig
On 10/16/2020 11:54 PM, Mark Filipak (ffmpeg) wrote: On 10/16/2020 10:14 PM, Carl Zwanzig wrote: You're absolutely right, Carl. BTW, I go by "z" (how I sign my email). There are a fair number of mpeg-ts parsers already out there in a variety of languages ... Really? Do you me

Re: [FFmpeg-user] MPEG TS+PS parser

2020-10-16 Thread Carl Zwanzig
On 10/15/2020 1:44 AM, Mark Filipak (ffmpeg) wrote: Got any suggestions how I should proceed? I hate to say this, but you're rather reinventing the wheel (and building it out of toothpicks). There are a fair number of mpeg-ts parsers already out there in a variety of languages, and the

Re: [FFmpeg-user] ffmpeg doesn't see audio stream

2020-10-16 Thread Carl Zwanzig
On 10/16/2020 6:18 PM, Ivan Gorin wrote: Yes, I've tried both of them, used different values from 1 million and higher, no change. Was doing something like ffmpeg -probesize 10 -analyzeduration 10.Still sees only the video stream. Maybe I'm not using them correctly, can you give

Re: [FFmpeg-user] ffmpeg doesn't see audio stream

2020-10-16 Thread Carl Zwanzig
On 10/16/2020 12:41 PM, Ivan Gorin wrote: [avi @ 0x558097763700] New audio stream 0:1 at pos:18113032 and DTS:0s [avi @ 0x558097763700] New audio stream 0:2 at pos:18113032 and DTS:0s Have you tried using -analyzedurarion and -probesize with relative large values to find the streams? See the

Re: [FFmpeg-user] Problem getting ffmpeg to stream encrypted SRT

2020-09-30 Thread Carl Zwanzig
On 9/30/2020 1:43 PM, Tim McClure wrote: When I stream ffmpeg SRT to Wowza without encryption it works however when I stream SRT encrypted I get the error listed below. I can use other software to stream encrypted SRT to Wowza and it works so I think the issue is on the ffmpeg side. Here is

Re: [FFmpeg-user] should I shoot the dog?

2020-09-29 Thread Carl Zwanzig
ig·no·rant /ˈiɡnərənt/ adjective lacking knowledge, information, or awareness about a particular thing. On 9/29/2020 1:40 PM, Paul B Mahol wrote: It is cryptic only for ignorant folks. Gee, maybe that's why they're asking questions- to gain a "knowledge, information, or awareness about a

Re: [FFmpeg-user] should I shoot the dog?

2020-09-29 Thread Carl Zwanzig
On 9/29/2020 12:43 PM, Paul B Mahol wrote: On Tue, Sep 29, 2020 at 10:26:20AM -0400, Mark Filipak (ffmpeg) wrote: And thanks for that. So, ffmpeg really is a Tower of Babel, eh? That does not seem wise to me. That seems like a great way to generate bugs in addition to confusion. Now if that

Re: [FFmpeg-user] Unable to reencode corrupt video file

2020-09-27 Thread Carl Zwanzig
On 9/27/2020 10:44 AM, Schampignon Cristobal via ffmpeg-user wrote: [mxf @ 018fbf7f9000] could not resolve source track sequence strong ref [mxf @ 018fbf7f9000] broken or empty index [mxf @ 018fbf7f9000] error getting stream index 4294967295 [mxf @ 018fbf7f9000] Could not find

Re: [FFmpeg-user] How to create "Input #1", "Input #2" etc. in addition to "Input #0"?

2020-09-27 Thread Carl Zwanzig
On 9/27/2020 5:27 PM, James Darnley wrote: Please do not top post. And the formatting makes the ffprobe output difficult to read. If you (the OP) is posting in HTML, turn that off and stick to plain text. See https://ffmpeg.org/mailing-list-faq.html If I understand the question- there is

Re: [FFmpeg-user] ffplay struggling with this station!

2020-09-24 Thread Carl Zwanzig
On 9/24/2020 6:29 AM, Firas Shahin via ffmpeg-user wrote: But this tells me that it must be the software versions, since you didn’t have any issues. Always try with the current ffmpeg (and please do not top-post replies). Later, z! ___ ffmpeg-user

Re: [FFmpeg-user] MPEGTS changes the duration of my video

2020-09-24 Thread Carl Zwanzig
On 9/24/2020 12:41 AM, Mar Andrés López wrote: When I process my video with ffmpeg and I set the format to mpegts, ¿why It changes the duration of my video from 00:00:04.56 to 00:00:04.00? Please include the complete command line and output when asking a question. If you're not using a really

Re: [FFmpeg-user] ffplay struggling with this station!

2020-09-23 Thread Carl Zwanzig
Hello, Please limit the use of "!"... On 9/23/2020 3:19 PM, Firas Shahin via ffmpeg-user wrote: ffplay version 3.2.15-0+deb9u1 Copyright (c) 2003-2020 the FFmpeg developers built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516 That's quite an old version, you'll need to try with an

Re: [FFmpeg-user] 5% of audio samples missing when capturing audio on a mac

2020-09-22 Thread Carl Zwanzig
On 9/22/2020 8:42 AM, Carl Zwanzig wrote: (which some of the things I was recalling, too) which -corrects- sigh, I shouldn't post before the coffee takes hold. z! ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman

Re: [FFmpeg-user] 5% of audio samples missing when capturing audio on a mac

2020-09-22 Thread Carl Zwanzig
On 9/22/2020 8:29 AM, Edward Park wrote: I might be making up the history behind it, but 44.1kHz was basically just workable, with 20kHz assumed to be the “bandwidth” limit of sound intended for people to hear, 40kHz would be needed to encode sound signals that dense, and the extra 4.1kHz would

Re: [FFmpeg-user] 5% of audio samples missing when capturing audio on a mac

2020-09-21 Thread Carl Zwanzig
On 9/17/2020 7:28 PM, amin...@mailbox.org wrote: Can you explain this? I'm trying to get (30/1.001) or the rounded 29.97 to divide 48k cleanly or be a clean ratio but I don't see it. It doesn't, but 48k samples per second is a nice number (and does divide nicely by 24,25, and 30). 3/1001

Re: [FFmpeg-user] Question about -noauto_conversion_filters

2020-09-14 Thread Carl Zwanzig
On 9/14/2020 4:57 AM, Michael Koch wrote: On 14-09-2020 04:54 pm, Gyan Doshi wrote: >> Each filter presents a list of input formats they can work with and a list of output formats they can directly generate. [...] Thanks for good explanation! Yes, that makes sense. Could that be included

Re: [FFmpeg-user] Problem about duration value of converted mp3 file

2020-09-14 Thread Carl Zwanzig
On 9/13/2020 11:47 PM, Edward Park wrote: Okay, so the file displays 25:47 in Media Player and plays... how long? Yep, and I also asked that almost two weeks ago. The only sure ways to know the actual Total Running Time (TRT) are either to render it in real time or to count the

Re: [FFmpeg-user] Are pipe's slow?

2020-09-10 Thread Carl Zwanzig
On 9/10/2020 1:28 AM, Simon Brown wrote: Equally, if I run myTestOnDemandRTSPServer from a file then it can play it without issue. It seems to be the combination of the two that causes the problem. Are you sure that the server is actually reading from the pipe? That is- cat myfile |

Re: [FFmpeg-user] Output to S3

2020-09-08 Thread Carl Zwanzig
On 9/8/2020 6:07 AM, Bohdan Fihar wrote: I can't rely on "aws s3 cp", since it can be not installed on a machine where I will run ffmpeg. A couple of things- Isn't or can not be? Please just post the error text, not an image of it (actually, you ought to be posting the complete/unedited

Re: [FFmpeg-user] Convert DNG

2020-09-07 Thread Carl Zwanzig
On 9/7/2020 1:51 AM, Michael Koch wrote: Again spreading misinformation, this needs to stop. I kindly ask people who do not want good to this project, to just unsubsribe from the list. What's wrong in my answer? EXACTLY! If something _is_ "misinformation" then correct it! Simply saying

Re: [FFmpeg-user] "interlace"

2020-09-06 Thread Carl Zwanzig
On 9/6/2020 12:33 PM, Carl Eugen Hoyos wrote: Or in other words: We will certainly not change our definition of "interlaced video" - many people seem to understand it. Sounds rather strong ("certainly not"), but those of us coming from the NTSC analog world all understood the concept of

Re: [FFmpeg-user] builds for Windows

2020-09-03 Thread Carl Zwanzig
On 9/3/2020 1:49 PM, Mark Filipak wrote: I'm not sure but I think building ffmpeg is pretty time-consuming. If I obtain help figuring out how to do it -- dependencies have defeated me -- I can do Linux makes, perhaps on alternate days. If others do the same, the task can become distributed and

Re: [FFmpeg-user] builds for Windows

2020-09-02 Thread Carl Zwanzig
On 9/2/2020 11:31 AM, Carl Eugen Hoyos wrote: Am Mi., 2. Sept. 2020 um 20:29 Uhr schrieb Michael Koch : "ffmpeg.zeranoe.com will close on Sep 18, 2020, and all builds will be removed." Any idea where we can get builds for Windows after this date? The FFmpeg project only provides source

Re: [FFmpeg-user] Problem about duration value of converted mp3 file

2020-09-01 Thread Carl Zwanzig
On 9/1/2020 1:21 AM, myounggun jang wrote: The duration of the original wav is 1:09:30, but the length of the converted MP3 is 1:07:16. Are those durations from actually playing the file? It's not uncommon for the container's metadata to be wrong and it sounds as if that's what's wrong (when

Re: [FFmpeg-user] Trouble grabbing from TV capture device

2020-08-27 Thread Carl Zwanzig
On 8/27/2020 1:52 PM, Simon Roberts wrote: I have a little device that takes "old" composite video and sends it out to USB. It's recognized by video4linux2 and I can watch the VHS tapes that I'm trying to capture using xawtv simply using: v4lctl -c /dev/video2 setnorm NTSC v4lctl -c /dev/video2

Re: [FFmpeg-user] Hoping to make multiple input seeking outputs based on a text file (inspired by concat)

2020-08-27 Thread Carl Zwanzig
On 8/27/2020 9:35 AM, James Sundquist wrote: I'd like to make a series of input seeking based outputs from the same source video. Ideally each will be taken from a text file called edits.txt. Otherwise every single new output means defining: Start point + Duration (or End Point) + name of new

Re: [FFmpeg-user] Some more thoughts on documentation

2020-08-23 Thread Carl Zwanzig
On 8/23/2020 12:30 PM, Mark Filipak wrote: Developer preparation: Kindly add comments to the source code. The comments don't need to teach or explain. They just need to repeat the code's logic, but in English instead of Martian. I think we'll have to disagree on that, most of the basic logic

[FFmpeg-user] Some more thoughts on documentation

2020-08-23 Thread Carl Zwanzig
Hello, I'm fairly sure that someone will object to a point below. Go ahead, but also suggest something better; if you can't think of an improvement, maybe it's better not to say anything. (And if something is not correct, tell us what is; just saying "Wrong!!" is not helpful.) On 8/23/2020

Re: [FFmpeg-user] Why is format=rgb24 required after maskedmerge?

2020-08-22 Thread Carl Zwanzig
On 8/22/2020 2:03 AM, Nicolas George wrote: There is no duplication, only multiple outputs. Would you also remove the man pages because they are "duplicate" of the HTML pages? Multiple outputs is not duplicative? If the same info in the same format is in two places, that rather sounds like

Re: [FFmpeg-user] Why is format=rgb24 required after maskedmerge?

2020-08-21 Thread Carl Zwanzig
On 8/21/2020 3:33 AM, Michael Koch wrote: I never found that "General Documentation" file because I thought "ffmpeg-all" contains what the filename implies: All. This is obviously not the case. The filename is misleading, if the file doesn't contain all documentation. Wouldn't it be better to

Re: [FFmpeg-user] Why is format=rgb24 required after maskedmerge?

2020-08-21 Thread Carl Zwanzig
On 8/21/2020 10:59 AM, Paul B Mahol wrote: I think git usage is far less complicated than ffmpeg. Also git should be better documented too. Both of those are true :), but still can be mystifying. For those on windoze, there are git GUIs available that take some of the pain out; I generally

Re: [FFmpeg-user] How to have a secure UDP BroadCast

2020-08-19 Thread Carl Zwanzig
On 8/19/2020 5:22 AM, Moritz Barsnick wrote: Perhaps the original poster meant "broadcast" in the sense of "sending"? I suspect that's the case- not broadcast in the networking sense. z! ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] libx265 a lot slower

2020-08-17 Thread Carl Zwanzig
On 8/17/2020 1:53 AM, Phil Rhodes via ffmpeg-user wrote: People, be polite. Harald, you are incredibly impolite. This is a user list. It is reasonable for people to ask basic questions here. Your assumption that everyone is an expert is unreasonable. Exactly. And many people will readily say

Re: [FFmpeg-user] libx265 a lot slower

2020-08-16 Thread Carl Zwanzig
Reindl is known for acerbic and unhelpful answers, AFAICT most readers ignore them. On 8/16/2020 10:02 AM, Cecil Westerhof wrote: For the moment I will keep with 264. Especially because these files are only played once. Just wanted to make sure I was not overlooking something. Probably

Re: [FFmpeg-user] Getting audio correct (Zoom meeting)

2020-08-15 Thread Carl Zwanzig
On 8/15/2020 3:14 AM, Cecil Westerhof wrote: I understood that there are different ways to record Zoom meetings. (I am not doing it myself, I only get the results.) I found that what I got was extremely small. (A video of six minutes only took 56.7 MB.) What would be the best way to record Zoom

Re: [FFmpeg-user] Unable to use hardware encoder h264_rkmpp with software decoded ATSC OTA transmission using rk

2020-08-13 Thread Carl Zwanzig
On 8/13/2020 12:28 PM, Brad Bruggemann wrote: ffmpeg version 589de66a0b Copyright (c) 2000-2018 the FFmpeg developers Always the first question- have you tried an up-to-date build of ffmpeg? If not, please do. Later, z! ___ ffmpeg-user mailing

Re: [FFmpeg-user] Grid of videos starting at different times

2020-08-12 Thread Carl Zwanzig
On 8/12/2020 9:13 AM, Randy Johnson via ffmpeg-user wrote: What does "op-post" mean? I am not familiar with that term. Sorry, "top-post" z! ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To

Re: [FFmpeg-user] Grid of videos starting at different times

2020-08-12 Thread Carl Zwanzig
please do not op-post on this list On 8/12/2020 6:58 AM, Randy Johnson via ffmpeg-user wrote: I did a ton of reading yesterday but cannot figure out how to expand this to more than 2 videos. I am getting hung up on how to read the complex_filter. There are several examples of multi-picture

Re: [FFmpeg-user] Loading shared libraries in macOS

2020-08-12 Thread Carl Zwanzig
On 8/12/2020 4:52 AM, Aleksid wrote: They can be loaded only if I use --prefix=/usr/local/Cellar/ffmpeg and then put dylibs into /usr/local/Cellar/ffmpeg/libs folder. Then do that, it's what --prefix is for. I understand that it is correct in a world of Unix systems. But I would prefer to

Re: [FFmpeg-user] FFmpeg distribution help

2020-08-05 Thread Carl Zwanzig
Hello, Please read the mailing list FAQ which instructs people not to top-post. On 8/5/2020 1:45 PM, Don Fotheringham wrote: Is there no procedure that allows for some path to an agreement of user fees or whatever? There is not; the GPL and LGPL don't need one, follow the compliance

Re: [FFmpeg-user] FFmpeg distribution help

2020-08-05 Thread Carl Zwanzig
On 8/5/2020 1:26 PM, Don Fotheringham wrote: We have developed software that requires the distribution of FFmpeg (included in the download). Our intention is to sell the software. Who do I contact to inquire further about how to proceed regarding permission, royalties, fees etc.? Since ffmpeg

Re: [FFmpeg-user] Input Buffer ovverun with Decklink 8K Pro and Nvenc

2020-08-05 Thread Carl Zwanzig
On 8/5/2020 12:23 PM, jroch via ffmpeg-user wrote: I figured out i was not setting pixel format. And I should have noticed that- BMD boards are famously finicky about the parameters. About top post, sorry for that, i don't even think i know what this is about. Use google? z!

Re: [FFmpeg-user] How can I get a duration and fps of any video that corresponds with the number of frames that can be read?

2020-08-05 Thread Carl Zwanzig
On 8/5/2020 9:52 AM, Tom Burrows via ffmpeg-user wrote: I need to get the duration of any video file such that when multiplied with the media's fps value (in this case, either ’tbr’ or ‘fps'), it equals the number of frames in the video. That works until you find a variable frame-rate video. I

Re: [FFmpeg-user] Input Buffer ovverun with Decklink 8K Pro and Nvenc

2020-08-05 Thread Carl Zwanzig
On 8/5/2020 10:10 AM, jroch via ffmpeg-user wrote: Any ideas on how to troubleshoot this ? First- post the complete command output. Second- check to see that your system has enough resources (cpu/mem/etc), in general, to make this work. (Try using the BMD MediaExpress program to capture.)

Re: [FFmpeg-user] How to create good video from low quality jpeg

2020-07-28 Thread Carl Zwanzig
On 7/28/2020 2:17 PM, Kawada Tsuyoshi wrote: I executed same command on Ubuntu 20.04 again. I got good quality video. Note that the linux disrto version doesn't matter at all, only the ffmpeg version. And please do not "top-post" on this mailing list. z!

Re: [FFmpeg-user] How to create good video from low quality jpeg

2020-07-27 Thread Carl Zwanzig
On 7/27/2020 5:26 PM, Kawada Tsuyoshi wrote: $ ffmpeg -r 30 -i %03d.jpg -vcodec libx264 -pix_fmt yuv420p -r 30 out.mp4 Please post the complete & unedited command output, that will tell us a lot about what you're doing. z! ___ ffmpeg-user mailing

Re: [FFmpeg-user] trouble installing ffmpeg

2020-07-22 Thread Carl Zwanzig
On 7/22/2020 1:53 PM, Jake McGaker wrote: and when I get to the step after I edit the environmental variables and I type in the cmd prompt, I get an error saying ffmpeg didn't install. Almost no one here is going to watch the video, please just explain what's going on and include the command

Re: [FFmpeg-user] Webcam capture

2020-07-22 Thread Carl Zwanzig
On 7/22/2020 6:22 AM, Rodolfo Medina wrote: Same problem also with simply: $ ffmpeg -f alsa -i hw:1,0 -f video4linux2 -i /dev/video0 out.mpg , and audio completely out of sync... And complete command output is still missing (it's always helpful) Since this works-- mencoder tv:// -tv

Re: [FFmpeg-user] How i can add to my stream browser source (chat, donation alerts, follow alerts etc, like in obs) and create delayed stream (like in obs) with complex filter ?

2020-07-22 Thread Carl Zwanzig
Please don't top-post on this list stream browser source (chat, donation alerts, follow alerts etc, like in What does that mean? Is that a single graphic overlay or something else? create delayed stream (like in obs) with complex filter? I think you'll find that in the list archive. On

Re: [FFmpeg-user] Fwd: Understanding/preventing buffer overruns

2020-07-20 Thread Carl Zwanzig
On 7/20/2020 9:57 AM, Simon Roberts wrote: Splitting this into five separate commands, generating five separate output files, running them in background simultaneously, works without any overruns, dropped frames, or any other complaints. This more suggests either a threading/process management

Re: [FFmpeg-user] ffmpeg extract hdmv pgs subtitle from mkv to srt or ssa

2020-07-19 Thread Carl Zwanzig
On 7/19/2020 9:05 AM, Ramon Brea wrote: Please help. Thanks Please include the complete command line and all of the output. That will help. (and as a pre-reminder, do not "top post" on this mailing list) z! ___ ffmpeg-user mailing list

Re: [FFmpeg-user] Causes of color bars?

2020-07-14 Thread Carl Zwanzig
On 7/13/2020 8:47 PM, Simon wrote: So now, assuming my logic is sound, my question would be how can ffmpeg detect the connected signal is present (it "knows" which channel is "live") and yet not read the video signal? Decklink boards are _very_ touchy about formats and parameters. Try setting

Re: [FFmpeg-user] Newb Help! Extracting pics from recovered video file/ or repair recovered video file

2020-07-13 Thread Carl Zwanzig
On 7/13/2020 10:20 AM, frank rizo wrote: I’m not that smart with all this, so, how do i find out that information? with a working video from the same source? ffprobe will report a lot of info about a video file; I find MediaInfo to be useful for that, too. With that, you -may- be able to tell

Re: [FFmpeg-user] Newb Help! Extracting pics from recovered video file/ or repair recovered video file

2020-07-13 Thread Carl Zwanzig
On 7/13/2020 10:06 AM, Paul B Mahol wrote: This can be done only if we know which codec where stored in file. Yep. Data recovery is always uncertain, whether from a single file or from a hard drive- if you can't find some indicator of what's where, it's all just random data (this is why

Re: [FFmpeg-user] Documentation of chromanr filter

2020-07-11 Thread Carl Zwanzig
On 7/11/2020 1:39 AM, Paul B Mahol wrote: Can you elaborate what you tried and what failed? Why does it matter??? Someone has gone to the effort to identify a problem and suggest a solution. I'd expect that whomever has been maintaining that code would welcome this and incorporate that

Re: [FFmpeg-user] Compiling on an aarch64 machine

2020-07-08 Thread Carl Zwanzig
On 7/8/2020 3:24 AM, Verachten Bruno wrote: On Tue, Jul 7, 2020 at 10:49 PM Carl Eugen Hoyos wrote: Am Di., 7. Juli 2020 um 21:34 Uhr schrieb Verachten Bruno : CFLAGS='-mfpu=neon' This is apparently not ignored (I thought it should be) and you are therefore responsible not to set these

Re: [FFmpeg-user] Immediate crash on windows.

2020-07-02 Thread Carl Zwanzig
On 7/2/2020 6:41 AM, Sam Holder wrote: Any ideas ... how best to proceed with troubleshooting? It's _always_ best to include the entire command line and output when asking for help here, even it there's almost no output. Have you tried that build on another version of windoze? It works

Re: [FFmpeg-user] "Four up" output?

2020-06-27 Thread Carl Zwanzig
On 6/27/2020 8:53 AM, Simon Roberts wrote: 1) create a composite output that has all four of the inputs laid out one per quadrant, so all can be seen on a single display Google "ffmpeg multiviewer", you'll find a handful of ideas, including this-

Re: [FFmpeg-user] How to merge several segments of a video to the original video?

2020-06-25 Thread Carl Zwanzig
On 6/25/2020 5:50 AM, mikelee164396 wrote: When I tried to merge, there was an error. See the attachment error.txt for the error content and command line. Please place those in the email body. Very few people will download and open the 7z file. Also, what do the .key and .m3u8 files look

Re: [FFmpeg-user] To Speed Up thumbnail creation - picture & video

2020-06-23 Thread Carl Zwanzig
On 6/21/2020 10:23 PM, Arunava Banerjee via ffmpeg-user wrote: ffmpeg version 2.8.15-0ubuntu0.16.04.1 Copyright (c) 2000-2018 That version is positively ancient in software terms. First thing is to get a current version (the -git head version is recommended, but at least a 4.2.3 build), start

Re: [FFmpeg-user] timeout error when reading RTSP/RTP incoming audio stream

2020-06-17 Thread Carl Zwanzig
On Tue, Jun 16, 2020 at 9:45 AM Yannick Barbeaux ^^ (Strange thing though : "Receive your own posts to the list?" is set to "Yes" in my subscription settings and I do not receive them). gmail tends to omit posts that

Re: [FFmpeg-user] Add delay to stream on twitch/youtube/restream.io, add chat and alerts

2020-06-15 Thread Carl Zwanzig
On 6/15/2020 10:17 AM, Rob Hallam wrote: Is this still true? In OBS, Settings → Advanced there is a "Stream Delay" section (mentioned onhttps://obsproject.com/wiki/OBS-Studio-Overview). The default setting of 20s estimates mem usage of 11MB; I set the option to 120s which increased the memory

Re: [FFmpeg-user] Add delay to stream on twitch/youtube/restream.io, add chat and alerts

2020-06-15 Thread Carl Zwanzig
(please do not top-post on this list) On 15/06/2020, KoreanFanOfficial wrote: Hello. I want to add delay, chat and alerts to my stream with ffmpeg. How i can do it? On 6/15/2020 3:48 AM, Tom Sparks wrote: Have you looked at OBS[1]? OBS filters can only add a short delay. Add delay- how

Re: [FFmpeg-user] [NVIDIA] Video conversion key frame becomes blurred

2020-06-13 Thread Carl Zwanzig
On 6/13/2020 4:55 AM, 黑雨天 wrote: I converted the mp4 video clips into key frames, using the above hardware and commands, the video became very blurred after the conversion. The video bit rate is very high and should not be the case. What is the question? We need to see the complete/unedited

Re: [FFmpeg-user] Compression issue using ffmpeg

2020-06-12 Thread Carl Zwanzig
On 6/12/2020 10:59 AM, Moritz Barsnick wrote: On Fri, Jun 12, 2020 at 16:46:30 +, FFmpeg user discussions wrote: Requesting you to read the entire email and kindly help me in solving this. I'm in urgent need of this fix. And you asked this question a few days ago. ffmpeg -i Input0.mov

Re: [FFmpeg-user] Issue in video compression

2020-06-11 Thread Carl Zwanzig
Perhaps I'm missing something, but... On 6/11/2020 8:27 AM, Chakraborty, Rakesh via ffmpeg-user wrote: ffmpeg -i Input0.mov -y -fpre ./preset/mp4_Projector.ffpreset -astrict -2 -vsync vfr -acodec copy -vcodec copy -s 1280x720 Output0.mp4 (where's the command output? _always_ post the command

Re: [FFmpeg-user] Concatenate multiple (<10) movies with xfade filter

2020-06-10 Thread Carl Zwanzig
On 6/10/2020 7:24 AM, Paul B Mahol wrote: On 6/10/20, Nicolas George wrote: Paul B Mahol (12020-06-10): How so it is a bug? xfade needs 2 inputs. concat demuxer gives single output. A filter that "can not work with" the output of another filter, your words, is a bug. Filters should all

Re: [FFmpeg-user] ffprobe different outputs for file input and binary data input

2020-06-10 Thread Carl Zwanzig
On 6/9/2020 4:56 PM, Ming Tu wrote: Updated to newest version but still has errors, different from before ffmpeg version 4.2.3-statichttps://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2020 the FFmpeg developers built with gcc 8 (Debian 8.3.0-6) You cut the command line, don't do that even

Re: [FFmpeg-user] newbie in trouble

2020-06-08 Thread Carl Zwanzig
On 6/8/2020 3:59 PM, John Van Ostrand wrote: Instead of using -r 30 try -vf "fps30" Rate setting can be tricky, with multiple options and filters. Some searching of the the list archive should give examples of how to do this. Part of the confusions come with setting input rate vs output

Re: [FFmpeg-user] Wanted: How to limit ffprobe

2020-05-29 Thread Carl Zwanzig
On 5/29/2020 1:39 PM, Mark Filipak wrote: I want to limit ffprobe to frames zero to 5403. Anyone know how I can do that? Perhaps an undocumented option? How about -read_intervals? z! ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] Converting zoom recordings

2020-05-27 Thread Carl Zwanzig
On 5/26/2020 11:36 PM, Edward Park wrote: I might be wrong but it looks like the example you uploaded is from a session with at least two files, maybe the other named similarly but ending with _02 (or maybe it is incomplete and the next part wasn't saved). I think it is sample buffers

Re: [FFmpeg-user] Converting zoom recordings

2020-05-25 Thread Carl Zwanzig
On 5/25/2020 7:33 AM, Francois Visagie wrote: It isn't clear why you're concerned with intermediate files, but Zoom has a "compatibility" setting for final output. When I checked a few days, the only output is still mp4. There is an option for "Optimize for 3rd party video editor", no idea what

Re: [FFmpeg-user] yadif-cuda issues

2020-05-22 Thread Carl Zwanzig
On 5/22/2020 9:33 AM, Kyle Schwarz wrote: You don't even need the build script though, you could easily cross-compile with Cygwin as you really only need the nv-codec-headers. MinGW-64? I've used that build ffmpeg w/ decklink and IIRC it was pretty much without problems once I had the

[FFmpeg-user] Converting zoom recordings

2020-05-21 Thread Carl Zwanzig
Hello, Does anyone have experience converting zoom recordings from their intermediate file(s) to other formats? The zoom application will convert to mp4 but that becomes difficult if you want to push the conversion to another system, and you still get mp4, no choice on that. (example file

Re: [FFmpeg-user] ffmpeg writing to an audio device on MacOS

2020-05-20 Thread Carl Zwanzig
On 5/20/2020 10:41 AM, Michael Glenn Williams wrote: ffmpeg version N-79453-g5256250-tessus Copyright (c) 2000-2016 the FFmpeg Have you tried a more modern version of ffmpeg? That one is positively _ancient_. If not, please get the -latest- and try that (start at

Re: [FFmpeg-user] TrueHD Issues/Remux

2020-05-17 Thread Carl Zwanzig
On 5/17/2020 8:12 AM, Ed Warner via ffmpeg-user wrote: I’m a new user to FFmpeg and having some issues I can’t find answers to.   Here’s what I’ve done I’m trying to accomplish: Ed, a couple of standard things- Please post the complete unedited command output w/ the command line, it contains

Re: [FFmpeg-user] building ffmpeg errors with vc++

2020-05-16 Thread Carl Zwanzig
On 5/16/2020 11:05 AM, Carl Eugen Hoyos wrote: My personal experience, note that nothing above points to using msvc. Just wanted to know if there some technical reasons I'd overlooked, doesn't sound like it. Some other OS projects that incorporate ffmpeg libs do use msvc, such as CasparCG.

Re: [FFmpeg-user] building ffmpeg errors with vc++

2020-05-16 Thread Carl Zwanzig
On 5/16/2020 10:53 AM, Carl Eugen Hoyos wrote: Probably unrelated: I strongly suggest to use wsl to compile FFmpeg for Windows. Not to disagree, but what forms that preference? (I use mingw wherever possible and msvc when forced (and from the command line, if possible). And I'm sure I've

Re: [FFmpeg-user] FFmpeg Vulnerable to Denial-of-Service (DoS) via Heap-Based Buffer Overflow in 'cbs_jpeg.c' File

2020-05-15 Thread Carl Zwanzig
On 5/15/2020 2:00 AM, Moritz Barsnick wrote: On Fri, May 15, 2020 at 08:28:03 +, FFmpeg user discussions wrote: Would like to understand, any plan to fix the to the https://nvd.nist.gov/vuln/detail/CVE-2020-12284 (FFmpeg Vulnerable to Denial-of-Service (DoS) via Heap-Based Buffer Overflow

Re: [FFmpeg-user] FFmpeg single threaded bottleneck

2020-05-14 Thread Carl Zwanzig
ISTR a thread here not that long ago about threading and hardware acceleration; may want to search that out. z! ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or

Re: [FFmpeg-user] Newbie needs help on capture video/audio using ffmpeg on RPI

2020-05-14 Thread Carl Zwanzig
On 5/14/2020 7:56 AM, Ram Shaffir wrote: Hmm... any suggestions on how to make it work? A different HW between the GoPro and the PI that does most of the encoding? You will need to do some more research on your own. May be that a different camera, or a different re-coding platform, is needed to

Re: [FFmpeg-user] Deinterlacing VHS

2020-05-12 Thread Carl Zwanzig
Was the the original capture compressed at all? Digitizing, especially from VHS, is a challenge. Best is to take the YC output from the deck, push it through a TBC/proc-amp into the capture device, and record that with no compression. If a TBC isn't available, at least don't compress the

Re: [FFmpeg-user] Newbie needs help on capture video/audio using ffmpeg on RPI

2020-05-11 Thread Carl Zwanzig
Hello, On 5/11/2020 2:05 PM, Ram Shaffir wrote: No, you are not missing anything, I had many many different tests and all were with poor results, This is still missing the _command_output_, please post that. Are you testing with the latest build for the r-pi? Also, do not top-post on this

Re: [FFmpeg-user] yadif mode 1 duplicates first two frames and hence causes lip-sync error

2020-05-11 Thread Carl Zwanzig
On 5/11/2020 10:04 AM, Bruce Roberts wrote: Thanks for getting back to me. I have tested with "ffmpeg version 96de7bf8df Copyright (c) 2000-2017 the FFmpeg developers" which, if not the latest version, is only a month or two old and the result is exactly the same. The copyright date suggests

Re: [FFmpeg-user] Newbie needs help on capture video/audio using ffmpeg on RPI

2020-05-11 Thread Carl Zwanzig
On 5/11/2020 5:12 AM, Ram Shaffir wrote: I tried some different ways to capture this. Still, my quality results are poor, and no audio or the audio is out of sync and video is choppy, another issue is that when I try to use the hardware acceleration codec h264_omx I get very low quality

Re: [FFmpeg-user] Decklink output latency, high

2020-05-09 Thread Carl Zwanzig
On 5/9/2020 12:21 PM, Marton Balint wrote: 1) The most significant is probably input probing. I suspect the decklink part is a red herring, playback from a file to the decklink shoudl have almost no latency, certainly not 3+ seconds (doing a gdi screen capture to decklink is under 1 second

Re: [FFmpeg-user] multiple bitrates with different logos

2020-05-08 Thread Carl Zwanzig
On 5/7/2020 6:56 PM, Edward Park wrote: Are the logo png files transparent and same size as the video frame size? If so you can use the overlay filter with the logo file as second input. And if not, it's easy enough to resize/reposition and add an alpha channel if missing. That may be way

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